<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator=">">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <!-- 绑定query属性 将其传到后端处理 再返回最新数据 此时点击搜索按钮重新发起axios请求 来请求匹配数据 -->
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template #default="scope">
            <!-- 通过scope拿到这一行的数据 -->
            <!-- 通过change事件监听状态变化 -->
            <!-- 滑块 -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template #default="scope">
            <!-- 修改按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="修改按钮"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="删除按钮"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 分配角色 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="设置按钮"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
      <!-- 隐藏的添加角色区域 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClose"
      >
        <!-- 内容区域 -->
        <el-form
          ref="addFormRef"
          :model="addForm"
          :rules="addFormRules"
          label-width="70px"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser"> 确 定</el-button>
        </span>
      </el-dialog>
      <!-- 隐藏的修改用户信息区域 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClose"
      >
        <!-- 内容区域 -->
        <el-form
          ref="editFormRef"
          :model="editForm"
          :rules="editFormRules"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" :disabled="true"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo"> 确 定</el-button>
        </span>
      </el-dialog>
      <!-- 隐藏的分配角色的对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRolesDialogVisible"
        width="50%"
        @close="setRoleDialogClosed"
      >
        <div>
          <p>当前的用户：{{ userInfo.username }}</p>
          <p>当前的角色：{{ userInfo.role_name }}</p>
          <p>
            <el-select v-model="selectRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRolesDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    // 验证邮箱的自定义规则 写在return外面
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail =
        /^\w+((-\w+)|(\.\w+))*@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
      // test方法验证输入的值是否合法
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的邮箱"));
    };
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regMoble =
        /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/;
      if (regMoble.test(value)) {
        // 合法的邮箱
        return cb();
      }
      cb(new Error("请输入合法的手机号"));
    };
    return {
      // 列表数据
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 2,
      },
      // 用户列表数据
      userList: [],
      // 需要被分配角色的用户信息
      userInfo: {},
      // 权限列表
      rolesList: [],
      // 已选中的id值
      selectRoleId: "",
      // 用户总数
      total: 0,
      // 是否打开添加用户区域的布尔值
      addDialogVisible: false,
      // 是否打开修改用户区域的布尔值
      editDialogVisible: false,
      // 是否打开分配权限区域的布尔值
      setRolesDialogVisible: false,
      // 添加用户的表单数据
      addForm: { username: "", password: "", email: "", mobile: "" },
      //查询到的修改用户的表单数据
      editForm: {},
      // 添加验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          { min: 3, max: 10, trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, max: 15, trigger: "blur" },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      // 修改表单的验证规则
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    // 拿到用户数据
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) return this.$message.error("获取列表失败");
      this.userList = res.data.users;
      this.total = res.data.total;
      // console.log(res);
    },
    // 监听newsize的变化
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 监听页码发生的变化
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    // 监听switch开关的状态改变
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("用户更新状态失败");
      }
      this.$message.success("更新成功");
      // console.log(userInfo);
    },
    //监听添加用户对话框的关闭事件
    addDialogClose() {
      // resetField重置表单项
      // 选择form的dom元素来重置
      this.$refs.addFormRef.resetFields();
    },
    // 点击按钮 添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return this.$message.error("请填写正确信息");
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status !== 201) return this.$message.error("添加用户失败");
        this.$message.success("添加用户成功");
        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    // 控制修改用户信息区域是否打开
    async showEditDialog(id) {
      this.editDialogVisible = true;
      // console.log(id);
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) return this.$message.error("查询用户失败");
      this.editDialogVisible = true;
      this.editForm = res.data;
    },
    //监听修改用户对话框的关闭事件
    editDialogClose() {
      // resetField重置表单项
      // 选择form的dom元素来重置
      this.$refs.editFormRef.resetFields();
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        // 发送网络请求
        const { data: res } = await this.$http.put(
          "users/" + this.editForm.id,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );
        if (res.meta.status !== 200) return this.$message.error("更新失败");
        this.editDialogVisible = false;
        this.getUserList();
        this.$message.success("更新成功");
      });
    },
    async removeUserById(id) {
      // 该方法点击确定结果为confirm 取消则为cancel 利用if判断结果来执行不同操作
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      if (confirmResult === "confirm") {
        const { data: res } = await this.$http.delete("users/" + id);
        if (res.meta.status !== 200) {
          return this.$message.error("删除失败");
        }
        this.$message.success("删除成功");
        this.getUserList();
      } else {
        return this.$message.info("取消删除");
      }
    },
    // 展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      // 再展示对话框前获取角色列表
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) return this.$message.error("获取失败");
      this.rolesList = res.data;
      this.setRolesDialogVisible = true;
    },
    // 点击按钮 分配角色
    async saveRoleInfo() {
      if (!this.selectRoleId) return this.$message.error("选择您要分配的角色");
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        { rid: this.selectRoleId }
      );
      // console.log(res);
      if (res.meta.status !== 200) return this.$message.error("更新失败");
      this.$message.success("更新成功");
      this.getUserList();
      this.setRolesDialogVisible = false;
    },
    // 监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectRoleId = "";
      this.userInfo = "";
    },
  },
};
</script>

<style lang="less" scoped></style>
